Heating-drum.



'NO. 828,937. PATENTED AUG. 21, 1906; v. J. JIRAK. HEATING DRUM.

APPLICATION FILED DBO.1. 1905.

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i 4 IE-55- Gwen-una- VACLAV J AN JIRAK, OLEVELAN D, OHIO.

H EATING-DRUM.

Specification of Letters Patent.

Patented Aug. 21, 1906.

Application filed December 1, 1905. Serial No. 289,840.

To all whom, it may concern.-

Be it known that I, VACLAV JAN JIRAK, a citizen of the United States, residing at Cleveland, in the county of Cuyahoga and State of Ohio, have invented certain new and useful Improvements in Heating-Drums, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, forming a part hereof.

My invention has relation to improve ments in heating-drums; and it consists in the novel construction and arrangement of parts more fully set forth in the specification and pointed out-in the claims.

In the drawings, Figure 1 is a perspective view of the drum with the outer vertical wall of one of the Vertical flues removed and a portion of the front wall broken to expose the inner longitudinal central partition and transverse partitions thereof and with a portion of the walls of the bottom transverse flue removed. Fig. 2 is a top plan of the drum with portion of the top wall removed, showing the direction of the products of combustion after reaching the upper horizontal transverse flue. Fig. 3. is a vertical cross-section on the line 3 3 of Fig. 2 looking to the right. Fig. 4 is a vertical cross-section on the line 4 4 of Fig. 2 looking to the left; and Fig. 5 is a horizontal section on line 5 5 of Fig. 1, parts of the adjacent walls of two consecutive transverse flues being broken to show the circulation therethrough.

The object of my invention is to construct a heating-drum which will permit the prodnets of combustion traversing the same to part with a maximum quantity of heat units before escaping through the exit-flue of the drum, one in which the disposition of the flues is such as to expose a maximum radiating-surface to the atmosphere, thereby raising the efliciency of the drum to a maximum, one whose principle of construction will permit the introduction of any number of transverse flues, and one possessing further and other advantages better apparent from a detailed description of the invention, which is as follows:

Referring to the drawings, F F represent two vertical flues closed at both ends, the same being connected by a series of (preferably) horizontal superposed transverse flues 1, 2, 3, 4, 5, 6, 7, 8, and 9, respectively, whose number may be increased or decreased at will, depending on the height to be given the drum... Discharging its heated products of combustion through the bottom of the flue 1 is a pipe-section a, which may be coupled to any available source (not shown) supplying said combustion products. Leading from the upper flue 9 at the corner of the drum is an exit-flue b, which may be coupled to any extension (not shown) available for conducting said product to any point desired. Each flue F F is divided into two contiguous or adjacent sections or compartments by a longitudinally-disposed central partition 0 c, that which may be regarded as the front sec,- tion in flue F being provided with a transverse or horizontal partition or deflectingplate 10, disposed in the plane of the top wall of the horizontal flue 5, Fig. 3, the rear section or compartment of said flue F being divided into three portions by a transverse partition or deflecting-plate 11, disposed in the plane of the top wall of the flue 2 and by a transverse partition 12, disposed in the plane of the top wall of the flue 6. The front section or compartment (the left one in Fig. 4.) of the flue F is divisioned off by a transverse orhorizontal partition 13, disposed in the plane of the top wall of flue 4, and a similar partition 14, disposed in the plane of the top wall of flue 8. The rear section or compartment of flue F is divisioned off by the horizontal partitions or deflecting-plates 15 and 16, respectively, disposed in the planes of the top walls of flues 3 and 7.

From the nature of the views represented in Figs. 3 and 4 it is obvious that in Fig. 3 the front compartment of flue F would be on the right and the rear compartment on the left of said figure, and in Fig. 4 the front compartment will be on the left and the rear compartment on the right.

Communication between the several horizontal series of flues and the vertical flues is established through openings 0 0, respectively, the former openings being associated in the drawings with the plain arrows and the latter openings 0 being associated with the feathered arrows. lines in Figs. 3 and 4 represent the transverse or horizontal flues 1 to 9, inclusive. Upon an inspection of Figs. 3 and 4 it will be seen that any given fluefor example, flue 3es tablishes through openings 0 0 communica= tion between the front and rear sections or compartments of flues F F, respectively; or, taking flue 6, for example, this establishes communication through openings 0 0 with the rear and front sections of the flues F F,

ICO

The horizontal dotted respectively. This form of communication characterizes all the flues between flue 1 and flue 9, the former communicating with'the rear sections of both flues F F through open- 5 ings 0 (see Figs. 1, 3, 4) and the latter com-. municating with both front and rear sections through openings 0 0. The reason of this will become obvious from an explanationof the operation of the drum, which is as follows: The products of combustion entering the bottom transverse flue 1 through the pipe a diverge, a portion (as seen by plain arrow in Fig. 1) entering through opening 0 into the rear section or compartment of the flue F and a portion entering the rear section of the flue F, as seen by feathered arrow in Fig. 1. Following now the products identified with the plain arrows and referring more particularly to Figs. 3 and 4, We find the circulation as follows: The products pass upward in said rear section of flue F through opening 0, immediately beneath the partition 15, entering flue 3, whence they pass through opening 0 into the front section of flue F, thence up- 25 ward through opening 0, beneath plate 10, into flue 5, thence horizontally through flue into the rear section of flue F through opening 0, thence upward through opening 0, immediately beneath the partition 16, into flue 7, thence through opening 0 into the front section of flue F, thence upward through opening 0 into the top flue 9, thence horizontally through said flue 9 into the flue F through openings 0 0' and upward into exit b. On the other hand, following the products identifled with the feathered arrows, the circulation is as follows: The products pass upward in the rear section of flue F through opening 0 into the second flue 2, thence through opening 0 into the front section of flue F, thence upward through opening 0, immediately beneath partition 13, into flue 4, thence through said flue, past the opening 0, into the rear section of flue F, thence upward through 5 opening 0 immediatelybeneath the partition 12, into flue 6, thence past opening 0 into the front section of flue F thence upward through opening 0 beneath plate 14, into flue 8, thence through flue 8, ast the opening 0, into the rear section of ue F, thence upward through opening 0" into flue 9, thence past openings 0 0 into the flue F, thence up into exit I), there joining the products prevlously delivered to said exit-flue. An analysis of the circulation shows that a portion of the ascending currents after leaving flue 1 pass upward through the flues F F and through the transverse flues identified by the odd numbers 3 5 7, and a portion pass through the flues F F and through the transverse flues identified by the even numbers 2 4 6 8, the final currents joinin in flue 9, whence they escape through exit In addition to this a current passing through the front compart- 6 5 ment or section of one flue F is directed through a transverse flue to the rear compartment of the opposite vertical flue F, and vice versa, the horizontal travel of the currents through the transverse flues being under the circumstances in a direction diagonal to the length of said flues, since the openings 0 0 0 0, leading to and from any given transverse flue, are necessarily located at diagonally opposite ends of such flue. (See, for example, flue 9 in Fig. 1 The arrangement of flues as shown therefore results not only in a circuitous path for the combustion products, but in a path of maximum length, thereby giving the currents am le time to communicate theirheat to the wa ls of a drum, necessarily presenting a maximum radiating area. The drum could be increased in height and additional transverse flues installed without departing from the nature or spirit of my invention. The front of the present drum is the broad side of Fig. 1, this explanation being made so as to reconcile the terms front and rear as applied to the contiguous sections or compartments into which the flues F F are divided by the vertical partitions 0.

Having described my invention, what I claim is- 1. A heating-drum comprising a pair of flues, a series of intermediate flues disposed transversely thereto and establishing communication between said pair of flues, aninlet and outlet for the products of combustion, and means for directing the products of combustion through the aforesaid pair of flues, and through the transverse flues in paths diagonal to the general length of the transverse flues, substantially as set forth. f

vertical flues, a series of intermediate horizon- 2. A heating-drum comprising a pair tal flues communicating with. the vertical flues, a longitudinal partition, dividing each vertical flue into two contiguous sections or compartments having independent communication with the horizontal flues, and means for directing the combustion products trav' ersing the drum, from one compartment of one vertical flue diagonally through the horizontal flues, into one of the longitudinal compartments of the opposite vertical flue, and 115 from the contiguous com artment of the first vertical flue diagonally t rough the horizontal flues into the other compartment of the opposite vertical flue, substantially as set forth.

3. A heating-drum comprising a pair of vertical flues, a series of intermediate parallel flues disposed transversely thereto and com municating therewith, a partition dividing each vertical flue into front and rear com- 12 5 partments having independent communication with the transverse flues, and transverse partitions disposed throughout the compait ments for directing a part of the current traversing the drum, through a portion of the I 0 transverse flues, and another part through the remainder of said transverse flues, substantially as set forth.

4. A heating-drum comprising a pair of vertical flues, a longitudinal central partitiondividing each into a front and rear compartment, a series of intermediate parallel trans verse flues communicating at opposite ends with said compartments, the transverse flues of one set establishing communication between the front compartment of one vertical flue and the rear compartment of the other, the transverse flues of another set establishing communication between the rear compartment of the former vertical flue and the front compartment of the latter, and directing means for causing the products of combustion to. traverse the different passages, sub stantially as set forth.

5. A heating-drum comprising a pair of vertical flues, a longitudinal partition dividing each into a front and rear compartment, a series of intermediate parallel transverse fluesj'those of one' 'set establishing communication between the front compartment of one vertical flue and the rear compartment of the other, and those of another set establishing communication between the rear compartment of the former vertical flue and the front compartment of the latter, the bottom flue of the transverse series discharging into adj acent compartments of the vertical flues, an exit-flue leading from the upper transverse flue, and suitable partitions disposed throughout the compartments of the vertical flues for directing a part of the current traversing the drum through one set of the transverse flues,

and a part through another set, substantially as set forth.

In testimony whereof I affiX my signature in presence of two Witnesses.

VACLAV JAN JIRAK.

Witnesses:

THOMAS PIWONKY, JUsTUs H. NIRDING. 

